Sprinkler system vacuum breaker cover



FIG. 1 is a left top front perspective view of a sprinkler system vacuumbreaker cover, showing my new design;

FIG. 2 is a front elevation view, the rear elevation being a mirrorimage thereof;

FIG. 3 is a left side elevation view, the right side elevation being amirror image thereof;

FIG. 4 is a top plan view; and,

FIG. 5 is a bottom plan view.

The ornamental design for a sprinkler system vacuum breaker cover, asshown and described.